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description Learn more about: _CIsqrt
title _CIsqrt
ms.date 4/2/2020
api_name
_CIsqrt
_o__CIsqrt
api_location
msvcr90.dll
msvcr80.dll
msvcr110_clr0400.dll
msvcr120.dll
msvcrt.dll
msvcr110.dll
msvcr100.dll
api-ms-win-crt-math-l1-1-0.dll
api_type
DLLExport
topic_type
apiref
f1_keywords
_CIsqrt
CIsqrt
helpviewer_keywords
CIsqrt intrinsic
_CIsqrt intrinsic
ms.assetid 663548ea-398c-48ee-8397-a787c6ebb937

_CIsqrt

Calculates the square root of the top value in the stack.

Syntax

void __cdecl _CIsqrt();

Remarks

This version of the sqrt function has a specialized calling convention that the compiler understands. It speeds up the execution because it prevents copies from being generated and helps with register allocation.

The resulting value is pushed onto the top of the stack.

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Requirements

Platform: x86

See also

Alphabetical function reference
sqrt, sqrtf, sqrtl